Va Board - Sony KV-27FS13 Service Manual

VA BOARD SCHEMATIC DIAGRAM
1 | 2
A
CN901
5P
—
TO A BOARD
CN506
R923
47
VM OUT 5
9V
4
C912 C913
B E 3
470 0.001
25V
NC 2
+B 1
R917
1k
—
L901
D903
C
1SS133
TEMP-CORR
R914
270
+B
—
C909 C908
0.0047 470
500V 10V
E R909
47
1/2W
:FPRD
D
R908
560
:FPRD
—
(VELOCITY MODULATION)
E
—
F
—
G
—
| 3 | 4
C914
0.047
:PT
9V
R920
6.1V Q906
820
2SC3311
VM OUT
R921
R919
10k
100
5.7V
R918
5.7V
5.4V
100
R916
1k Q905
5.4V
2SA1309A-QRSTA
Q903
VM OUT
2.4V 2.4V
2SC3311
AMP
C911
R915 100
1.8V
1k 10V
Q904
R913
R911
1.8V
2SC3311
68
68
AMP
R912
220
C910
0.1
C907
200V
33 Q902 Q901
:PT
160V
2SA1837 R905 2SC4793
67.9V 1k 67.9V
VM.DRIVE.1 VM.DRIVE.2
:FPRD
R907
135.4V
0.4V
D902 D901
2.7
:FPRD MTZJ-T-77-39 MTZJ-T-77-39
134.9V 0.9V
C905 R906 R904
0.047 18k 18k
C906 C904
200V
0.001 :PT 0.001 :PT
:PT
C902
0.047
C901 :PT
2.2
160V
(*) VA BOARD VARIANT MODEL LIST
KV-27FS13
KV-27FS17
KV-27FV17
KV-29FV17
REF NO. LOC. KV-29FV17C
C805 B-6 0.033µF 200V
C811 A-6 0.047µF 200V
KV-27FS13/ 27FS17/ 27FV17/ 29FV17/ 29FV17C/ 32FS13/ 32FS17/ 34FS13C/ 34FS17
| 5 | 6
D806
1SS133T-77
D805
1SS133T-77
9V
R876 6.8V
1k
L802
10mH
Q808
2SB734
9V DRIVE 0.6V
D807
ERA82-004TP5
R818
100
Q807
IRF614
6.8V
QP-H-OUT
6.4V
D804
R922
RGP10GPKG23
22
S
:FPRD
R910
180
R902 3W
2.7 :RS
:FPRD
R901
C903 47
470 :FPRD
10V
R903
560
:FPRD
KV-32FS13
KV-32FS17
KV-34FS13C
KV-34FS17
0.01µF 630V
0.082µF 200V
NOTE: #= Not Mounted
— 53 —
| 7 | 8
CN904
4P
C811
TO D BOARD CN801
*
L801
200V
10mH
V MOD
4
R826 V MOD
3
2.2k
9V DRIVE
2
QP DRIVE
1
C805
*
Q.P.-
1
2 Q.P.-
Q.P.+
3
Q.P.+
4
E
5
E
6
VM
7
VM
8
CN902
8P
BA5-911-VA
| 9 | 10
QP QP VM
VM